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The north decline east and west non-discharging sumps are designed to contain <br />the 25-year 24 hour storm event without discharge. The sumps were dry during the <br />inspection. The sumps were certified by Larry M. Reschke, P.E. on December 21, <br />1992. Based on visual observations during the inspection and a hand level survey of <br />the depth of the sumps, the sumps have excess capacity plus the following design <br />capacity: <br /> Water Sediment Total <br />East Sump - A-F 0.08 N/A 0.08 <br />West Sump - A-F 0.32 N/A 0.32 <br />The sewage lagoons located at the unit train loadout consist of an aeration lagoon and <br />a series of three non-discharging lagoons. During the inspection, the aeration lagoon <br />and first lagoon were dry. The second and third lagoons (cells 3 & 4) contained some <br />water at approximate elevation 4758. The capacity of the lagoons is not considered <br />important and is therefore not presented. The lagoons are inactive. The embankment <br />on all of the lagoons needs to be graded to smooth out erosional features. Plans are to <br />delay maintenance of the embankments until the sewage treatment system is <br />re-activated. <br />To the best of my knowledge <br />have been maintained as dey <br />applicable regulations. .!c <br />and except as noted above, the impoundments <br />'accordance with the approved plan and <br />i ~~ ze ° <br />~*g 1323'J a~~ <br />Jas E. Stovers~,e~ <br />olor~sF°rQf~ssi~€n <br />Reg ist Pa~i~l A~~;r19230 <br />Date <br />-4- <br />